How long did it take to cleanup 911?
The process of cleanup and recovery at Ground Zero took a total of eight months, with rescue and recovery workers working 24 hours a day. The remains of all the other buildings in the World Trade Center were demolished.
In the five months following the attacks, dust from the pulverized buildings continued to fill the air of the World Trade Center site. Increasing numbers of New York residents are reporting symptoms of Ground Zero respiratory illnesses.
Using data through June 2002—the month in which the recovery process at the tradecenter site ended—they estimate that earnings losses, property damage, and cleanup costs total between $33 billion and $36 billion.
In total, twenty survivors were pulled out of the rubble. The final survivor, Port Authority secretary Genelle Guzman-McMillan, was rescued 27 hours after the collapse of the North Tower.
On Sept. 11, 2001, WTC 7 endured fires for almost seven hours, from the time of the collapse of the north WTC tower (WTC 1) at 10:28:22 a.m. until 5:20:52 p.m., when WTC 7 collapsed.
The work was so dangerous that many firefighters and police officers wrote their names and phone numbers on their forearms in case they fell into the hole or were crushed. Did you know? Fires continued to burn in lower Manhattan for 99 days after the attack.
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World Trade Center (1973–2001)
| Other information | |
|---|---|
| Floor area | 1 and 2 WTC: 4,300,000 sq ft (400,000 m2) each 4, 5, and 6 WTC: 500,000 sq ft (50,000 m2) each 7 WTC: 1,868,000 sq ft (170,000 m2) |
| Lifts/elevators | 1 and 2 WTC: 99 each |
Cleanup costs: $1.3 billion. Property and infrastructure damage: $10 billion to $13 billion. Federal emergency funds (heightened airport security, sky marshals, government takeover of airport security, retrofitting aircraft with anti-terrorist devices, cost of operations in Afghanistan): $40 billion.
By this approach, the immediate impact of the 9/11 attack was to reduce real GDP growth in 2001 by 0.5%, and to increase the unemployment rate by 0.11% (reduce employment by 598,000 jobs.)
Who was the highest survivor of 9 11?
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| Stanley Praimnath | |
|---|---|
| Occupation | Executive |
| Employer | Fuji Bank |
| Known for | Survivor of September 11 attacks |
The Incredible Survival Of Genelle Guzman-McMillan, The Last Person Rescued From The Rubble On 9/11.
As I was watching the 9/11 ten year tributes, I saw an interview with Genelle Guzman, who was the last of the survivors to be pulled from the World Trade Center rubble. Her story touched my heart and I knew I had to read "Angel in the Rubble." September 11, 2001 starts as a typical day for Genelle.
Each of the Twin Towers had 110 floors. Each tower's footprint and floors were approximately an acre in size. On windy days, each tower could sway up to almost 12 inches side to side. There were 43,600 windows in the Twin Towers, equating to more than 600,000 square feet of glass.
Nineteen terrorists from al-Qaeda hijacked four commercial airplanes, deliberately crashing two of the planes into the upper floors of the North and South Towers of the World Trade Center complex and a third plane into the Pentagon in Arlington, Virginia.
11, 2001. According to a theory advanced by a SINTEF materials scientist, a mixture of water from sprinkler systems and molten aluminium from melted aircraft hulls created explosions that led to the collapse of the Twin Towers in Manhattan. Just before the two New York skyscrapers collapsed on Sept.
2,996 people died in the September 11, 2001 attacks, including 2,977 victims and 19 hijackers who committed murder–suicide, while thousands more were injured. Of the 2,977 fatal victims, 2,753 were killed in the World Trade Center and the surrounding area, 184 at the Pentagon, and 40 in Pennsylvania.
At two and a half years old, Christine Lee Hanson was the youngest of the eight children who were killed on 9/11, all passengers aboard the aircraft commandeered by terrorists.
Table ranking "History's Most Deadly Events": Influenza pandemic (1918-19) 20-40 million deaths; black death/plague (1348-50), 20-25 million deaths, AIDS pandemic (through 2000) 21.8 million deaths, World War II (1937-45), 15.9 million deaths, and World War I (1914-18) 9.2 million deaths.
There are still more than 1,100 victims, at least 40% of those who died on 9/11, that remain unidentified. According to The New York Times, forensic scientists are testing and retesting more than 22,000 body parts that were recovered from the World Trade Center site.
Who cleaned up 911?
The Department of Design and Construction contracted five construction companies to clear the rubble of the WTC from Ground Zero (in order to reopen Wall Street as quickly as possible the NYC Department of Sanitation deployed thousands of staff to clean the area around the Stock Exchange and lower Manhattan in general) ...
The buildings collapsed within ten seconds, hitting bottom with an estimated speed of 200 km/h (Getty Images). The egg-crate construction made a redundant structure (i.e., if one or two columns were lost, the loads would shift into adjacent columns and the building would remain standing).
The Department of Design and Construction contracted five construction companies to clear the rubble of the WTC from Ground Zero (in order to reopen Wall Street as quickly as possible the NYC Department of Sanitation deployed thousands of staff to clean the area around the Stock Exchange and lower Manhattan in general) ...
10:28:22: The North Tower of the World Trade Center collapses, 1 hour and 42 minutes after the impact of Flight 11. The Marriott Hotel, located at the base of the two towers, is also destroyed. 10:50:19: Five stories of part of the Pentagon collapse due to the fire.
Each of the Twin Towers had 110 floors. Each tower's footprint and floors were approximately an acre in size. On windy days, each tower could sway up to almost 12 inches side to side. There were 43,600 windows in the Twin Towers, equating to more than 600,000 square feet of glass.
The work took ten months and involved employees from dozens of City, State and federal agencies and the tireless efforts of responders, laborers, contractors, volunteers, and community organizations.
There are still more than 1,100 victims, at least 40% of those who died on 9/11, that remain unidentified. According to The New York Times, forensic scientists are testing and retesting more than 22,000 body parts that were recovered from the World Trade Center site.
The collapse of the World Trade Center occurred during the terrorist attacks of September 11, 2001, after its Twin Towers were struck by two hijacked commercial airliners. One World Trade Center (WTC 1, or the North Tower) was hit at 8:46 a.m. Eastern time and collapsed at 10:28 a.m.
Only six people in the World Trade Center towers at the time of their collapse survived. Almost 10,000 others were treated for injuries, many severe.
Why did the South Tower fall first?
Engineers suggested that the south tower of the World Trade Center collapsed first, even though it was hit by the second plane, because the fireball caused by the crash was larger and because the plane hit the corner of the building, rather than the center, where there is more structural support.
8:46 a.m. - Flight 11 crashes into floors 93 through 99 of the North Tower. 8:50 a.m. - President George W.
2,996 people died in the September 11, 2001 attacks, including 2,977 victims and 19 hijackers who committed murder–suicide, while thousands more were injured. Of the 2,977 fatal victims, 2,753 were killed in the World Trade Center and the surrounding area, 184 at the Pentagon, and 40 in Pennsylvania.
At two and a half years old, Christine Lee Hanson was the youngest of the eight children who were killed on 9/11, all passengers aboard the aircraft commandeered by terrorists.
Table ranking "History's Most Deadly Events": Influenza pandemic (1918-19) 20-40 million deaths; black death/plague (1348-50), 20-25 million deaths, AIDS pandemic (through 2000) 21.8 million deaths, World War II (1937-45), 15.9 million deaths, and World War I (1914-18) 9.2 million deaths.
Normal building fires and hydrocarbon (e.g., jet fuel) fires generate temperatures up to about 1,100 degrees Celsius (2,000 degrees Fahrenheit). NIST reported maximum upper layer air temperatures of about 1,000 degrees Celsius (1,800 degrees Fahrenheit) in the WTC towers (for example, see NCSTAR 1, Figure 6-36).
Both the South Tower and the North Tower had mechanical floors, and the same type of walls. On the 107th floor of this building was a popular tourist attraction called "Top of the World Trade Center Observatories," and on the roof was an observation deck accessible to the public and a disused helipad at the center.
The hijacked Flight 11 was crashed into floors 93 to 99 of the North Tower (1 WTC) at 8:46 a.m. The hijacked Flight 175 struck floors 77 to 85 of the South Tower (2 WTC) 17 minutes later at 9:03 a.m. When the towers were struck, between 16,400 and 18,000 people were in the WTC complex.